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All Journal Voice Of Informatics Jurnal Mantik
Dony Ariyus
MTI Universitas Amikom Yogyakarta
Computer Science & IT Economics, Econometrics & Finance Languange, Linguistic, Communication & Media

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Analisis Penerapan Modifikasi Algoritma Vigenere Cipher, Caesar Cipher, Vernam Cipher dan Hill Cipher Untuk Penyisipan Pesan Dalam Gambar Siti Fatonah; Anisa Yulandari; Dony Ariyus
Jurnal VOI (Voice Of Informatics) Vol 8, No 2 (2019)
Publisher : STMIK Tasikmalaya

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Abstract

Saat ini informasi merupakan elemen yang sangat penting dalam kehidupan manusia. Menjaga keamanan informasi plaintext dapat dilakukan melalui proses enkripsi dalam kriptografi. Penelitian sebelumnya, berbagai algoritma yang dapat digunakan untuk melakukan enkripsi maupun dekripsi dalam kriptografi. Penelitian ini melakukan pengamanan pesan dengan menyisipkan pesan pada sebuah gambar menggunakan algoritma steganografi LSB (least Significant Bit) pada pesan yang telah dienkripsi menggunakan modifikasi algoritma vigenere cipher, hill cipher, vernam cipher dan hill cipher. Hasil penelitian ini pesan dapat disembunyikan dalam gambar dengan meletakkan pesan pada bit terakhir gambarKata Kunci—kriptografi, steganografi, keamanan informasiInformation is a very important element in human life. Maintaining the security of plaintext information can be done through encryption in cryptography. Previous research, various algorithms that can be used to encrypt and decrypt cryptography. This study secures messages by inserting messages on an image using the least significant LSB steganography algorithm on messages that have been encrypted using a modified vigenere cipher algorithm, hill cipher, vernam cipher and hill cipher. The results of this study message can be hidden in the image by placing a message on the last bit of the image.. Keywords—cryptography, steganography, information security
Implementation Of Message Security In Pictures Using Playfair Chiper Algorithm: Implementation Of Message Security In Pictures Using Playfair Chiper Algorithm Muhamad Maksum Hidayat; Wahyu Nugroho; Dony Ariyus
Jurnal Mantik Vol. 3 No. 4 (2020): February: Manajemen, Teknologi Informatika dan Komunikasi (Mantik)
Publisher : Institute of Computer Science (IOCS)

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Abstract

Cryptography implementations are now widely solved by cryptanalyst in the process of securing a messaging system, and therefore the need to add a method of steganography. Steganography is the art of hiding secret messages in any medium other than the sender and receiver that no one would know or realize there is a secret message in the media is sent. In this journal, conducted a study on the implementation of cryptography in the form of encryption and decryption of a message using the Playfair cipher algorithm is modified by letter hijaiyah. Then the implementation of steganography in a PNG image media, the testing process is done by sending the media image using email, whatsapp, facebook, and telegram. research aims to make the encryption process stronger and more secure,
Co-Authors Anisa Yulandari Muhamad Maksum Hidayat Siti Fatonah Wahyu Nugroho